2K23: Brandon Marsh

[onejayhawk]

Where is the number 5 coming from? It's very arbitrary. There are ways to calculate it by looking at the data. If you haven't done that, that's fine, but suggesting that I'm wrong about 7 being way too small without supplying any data at all doesn't sound like something a math/stat guy would do. I was truly interested in hearing how you came up with it.

The rule of 30 samples was thrown out a long time ago, the size of sample you need is dependent on population distribution, static numbers like that aren't useful.

Five is a bit arbitrary but there are reasons. It is better to read it don't settle for four.

This has to do with restricted choice tests, like the t-test, see below. At 10% confidence, the difference between three degrees of freedom (df) and four df is larger than the difference between 5 df and 100 df.

https://byjus.com/maths/t-test-table/

[harmon]

Five is a bit arbitrary but there are reasons. It is better to read it don't settle for four.

This has to do with restricted choice tests, like the t-test, see below. At 10% confidence, the difference between three degrees of freedom (df) and four df is larger than the difference between 5 df and 100 df.
https://byjus.com/maths/t-test-table/

I wonder what Brandon Marsh would have to say about all this.

[Ken]

Five is a bit arbitrary but there are reasons. It is better to read it don't settle for four.

This has to do with restricted choice tests, like the t-test, see below. At 10% confidence, the difference between three degrees of freedom (df) and four df is larger than the difference between 5 df and 100 df.
https://byjus.com/maths/t-test-table/

OK, now that's the response I expect from someone with a data background - numbers and a reason, thank you - that's what I was looking forward to.

[heyelander]

I wonder what Brandon Marsh would have to say about all this.

Castellanos would say "I don’t have a college degree. I hit baseballs"

[onejayhawk]

Castellanos would say "I don’t have a college degree. I hit baseballs"

Wouldn't that be hit and miss baseballs?